sPHENIX Conference Note: COLDQCD-2025-02

Title: Inclusive jet transverse single spin asymmetries in transversely polarized proton-proton collisions at √s = 200 GeV
Date: 19 October 2025
Tag: sPH-CONF-COLDQCD-2025-02
Document: Conference Note
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Figure 1 (Click to download high-resolution PDF Figures.)


Left figure: Jet energy scale as a function of the true jet transverse momentum before (red points) and after (blue points) applying the jet energy correction. The exponential fit to the jet energy scale and a constant fit to the corrected jet energy scale are displayed as red and blue lines, respectively. Right figure: Jet energy resolution as a function of the true jet transverse momentum. A power law fit to the jet energy resolution is displayed as red line.
Figure 2 (Click to download high-resolution PDF Figures.)


Left: Run-by-run polarization for each beam weighted by the luminosity of each run. Right: Run-by-run relative luminosity for each beam weighted by the luminosity of each run.
Figure 3 (Click to download high-resolution PDF Figures.)


Systematics budget for the various individual and total systematic upper and lower uncertainties relative to the statistical uncertainties as a function of the transverse momentum of the jet. The left figure displays the uncertainties for the backward region, while the right figure shows those of the forward region.
Figure 4 (Click to download high-resolution PDF Figures.)


Final transverse single spin asymmetries as a function of the jet transverse momentum in the forward and backward regions (full, black symbols), compared to a recent STAR publication of similar observables using charged particles and electromagnetic calorimetry with a radius of 0.6 (dark-green open circles). The left figure displays the asymmetries for the backward region while the right figure shows those of the forward region.
Figure 4 Alternatives (Click to download high-resolution PDF Figures.)